Rgb-ir sensor, and method and apparatus for obtaining 3D image by using same

Abstract

The present invention relates to an RGB-IR sensor, and a method and an apparatus for obtaining a 3D image by using the same. The RGB-IR sensor according to the present invention comprises: a first pixel basic unit including one of each of R, G, B and IR pixels; and a second pixel basic unit in which the R, G, B and IR pixels are arranged in a different order from those in the first pixel basic unit, wherein the RGB-IR sensor is comprised by alternately arranging the first pixel basic unit and the second pixel basic unit in a horizontal direction, and wherein R, G, B and IR pixel arrangements in the first pixel basic unit and the second pixel basic unit are determined so that the position of IR-pixels in the RGB-IR sensor are not equidistance apart from each other.

Description

TECHNICAL FIELD[0001]The present invention relates to an RGB-IR sensor, and a method and an apparatus for obtaining a 3D image by using the same.BACKGROUND ART[0002]Recently, various techniques and products for obtaining a 3D image from a recognized object have been developed. For example, a TOF (Time Of Flight) system is to obtain a 3D image from a distance or depth between a camera and a recognized object, which is measured using a temporal difference between a light emission time for irradiating light to the recognized object and a light receiving time of light reflected from the recognized object. Also, a structure light system is to obtain a 3D image from a depth of a recognized object, which is measured by emitting patterned infrared structured light to the recognized object and analyzing a pattern of infrared rays received from the recognized object.[0003]In this regard, although two or more visible light images may be used to obtain 3D depth information, a system, which uses...

AI Technical Summary

Benefits of technology

[0038]Visible light images and infrared images, which are suitable for their purposes, may be obtained through an RGB-IR sensor structure and an arrangement structure of R, G, B and IR pixels according to the present invention.

[0039]Particularly, infrared images may be recovered efficiently through an arrangement structure of IR pixels within an RGB-IR sensor according to the present invention. Also, accurate depth information of a recognized object may be obtained using the recovered infrared images.

[0040]Furthermore, clearer and accurate 3D image signals may be displayed through an apparatus for obtaining a 3D image.

Problems solved by technology

Therefore, if interpolation is performed using the loose coupled IR pixels only, a problem occurs in that interpolation accuracy and efficiency are more deteriorated than the case where at least one or more tight coupled IR pixels exist.

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